{"id":1833,"date":"2014-12-16T17:38:22","date_gmt":"2014-12-16T17:38:21","guid":{"rendered":"https:\/\/www.couchbase.com\/blog\/?p=1833"},"modified":"2014-12-16T17:38:22","modified_gmt":"2014-12-16T17:38:21","slug":"why-couchbase-chose-rxjava-new-java-sdk","status":"publish","type":"post","link":"https:\/\/www.couchbase.com\/blog\/ko\/why-couchbase-chose-rxjava-new-java-sdk\/","title":{"rendered":"\uce74\uc6b0\uce58\ubca0\uc774\uc2a4\uac00 \uc0c8\ub85c\uc6b4 Java SDK\ub85c RxJava\ub97c \uc120\ud0dd\ud55c \uc774\uc720"},"content":{"rendered":"

\uc774 \ube14\ub85c\uadf8 \uac8c\uc2dc\ubb3c\uc5d0\uc11c\ub294 \uc0c8\ub85c\uc6b4 Java SDK\uc758 \ud544\uc218 \uad6c\uc131 \uc694\uc18c \uc911 \ud558\ub098\ub85c RxJava\ub97c \uc120\ud0dd\ud55c \uc774\uc720\uc640 \ub3d9\uae30\ub97c \uc124\uba85\ud569\ub2c8\ub2e4.<\/p>\n

\ub3d9\uae30 \ubd80\uc5ec<\/h2>\n

API\ub97c \uc124\uacc4\ud558\ub294 \ubc29\ubc95\uc5d0\ub294 \uc5ec\ub7ec \uac00\uc9c0\uac00 \uc788\uc73c\uba70 \uac01 \ubc29\ubc95\ub9c8\ub2e4 \uace0\uc720\ud55c \uc7a5\uc810\uacfc \ub2e8\uc810\uc774 \uc788\uc2b5\ub2c8\ub2e4. \uc0c8\ub85c\uc6b4 API\ub97c \uc124\uacc4\ud558\ub294 \uacfc\uc815\uc5d0\uc11c \uc8fc\uc694 \uc9c8\ubb38 \uc911 \ud558\ub098\ub294 \uc0ac\uc6a9\uc790\uc5d0\uac8c \uc5b4\ub5bb\uac8c \ub178\ucd9c\ud560 \uac83\uc778\uac00 \ud558\ub294 \uac83\uc774\uc5c8\uc2b5\ub2c8\ub2e4.\u00a0<\/p>\n

\uc6b0\ub9ac\uac00 \uc2a4\uc2a4\ub85c\uc5d0\uac8c \ubb3c\uc5b4\ubcfc \ud544\uc694\uac00 \uc5c6\uc5c8\ub358 \ud55c \uac00\uc9c0 \uc9c8\ubb38\uc740 \ub3d9\uae30\uc2dd\uc778\uac00 \ube44\ub3d9\uae30\uc2dd\uc778\uac00 \ud558\ub294 \uac83\uc774\uc5c8\uc2b5\ub2c8\ub2e4. \uc800\ud76c\ub294 \ube44\ub3d9\uae30 API\uac00 \uc5ec\ub7ec\ubd84\uc774 \uc790\uc8fc \ud544\uc694\ub85c \ud558\ub294 \uc131\ub2a5\uacfc \ud655\uc7a5\uc131\uc744 \uc5bb\uc744 \uc218 \uc788\ub294 \uc720\uc77c\ud55c \ud569\ub9ac\uc801\uc778 \ubc29\ubc95\uc774\uba70, \ube44\ub3d9\uae30\uc5d0\uc11c \ub3d9\uae30\uc2dd\uc73c\ub85c \uc804\ud658\ud558\ub294 \uac83\uc774 \uadf8 \ubc18\ub300\ubcf4\ub2e4 \ud6e8\uc52c \uc27d\ub2e4\uace0 \uad73\uac8c \ubbff\uace0 \uc788\uc2b5\ub2c8\ub2e4. \ud604\uc7ac \uc548\uc815\uc801\uc778 SDK(\uc791\uc131 \uc2dc\uc810 \uae30\uc900 1.4.3)\ub294 \uc774\ubbf8 \ube44\ub3d9\uae30 \uc751\ub2f5\uc744 \uc81c\uacf5\ud558\uae30 \uc704\ud574 \ub2e4\uc591\ud55c \ubc29\uc2dd\uc73c\ub85c \ud4e8\ucc98\ub97c \ub9ce\uc774 \ud65c\uc6a9\ud558\uace0 \uc788\uc73c\uba70, \uc774\ub294 spymemcached\uac00 \ucc98\uc74c \uc774 \uac1c\ub150\uc744 API\uc5d0 \ub3c4\uc785\ud55c 2006\/7\ub144\uc73c\ub85c \uac70\uc2ac\ub7ec \uc62c\ub77c\uac11\ub2c8\ub2e4.<\/p>\n

Java Future \uc778\ud130\ud398\uc774\uc2a4\ub294 \ub2e4\ub978 \uc194\ub8e8\uc158(\uc608: Scala \ud4e8\ucc98)\uc5d0 \ube44\ud574 \ub9e4\uc6b0 \uc81c\ud55c\uc801\uc774\ub77c\ub294 \uac83\uc740 \uc798 \uc54c\ub824\uc838 \uc788\uc2b5\ub2c8\ub2e4. \ub610\ud55c, \ud558\ub098\uc758 \uacc4\uc0b0\uc774 \ub2e4\ub978 \uacc4\uc0b0\uc5d0 \uc758\uc874\ud558\ub294 \ube44\ub3d9\uae30 \ub370\uc774\ud130 \ud750\ub984\uc744 \uad6c\ucd95\ud574\uc57c \ud558\uace0 \ubaa8\ub4e0 \uac83\uc744 \ube44\ub3d9\uae30\ud654\ud558\ub824\ub294 \uacbd\uc6b0 \ucf54\ub529\ud558\uae30\uac00 \uc57d\uac04 \uae4c\ub2e4\ub86d\uc2b5\ub2c8\ub2e4. \ucd5c\uadfc \ubc84\uc804\uc5d0\uc11c\ub294 \ub9ac\uc2a4\ub108\uc5d0 \ub300\ud55c \uc9c0\uc6d0\uc774 \ucd94\uac00\ub418\uc5b4 \uc0c1\ud669\uc774 \uc0c1\ub2f9\ud788 \uac1c\uc120\ub418\uc5c8\uc9c0\ub9cc \uc5ec\uc804\ud788 \uc774\uc0c1\uc801\uc778 \uc194\ub8e8\uc158\uc740 \uc544\ub2d9\ub2c8\ub2e4.<\/p>\n

\uc9c0\ub09c \uba87 \ub144 \ub3d9\uc548 \ub2e4\ub978 \ub77c\uc774\ube0c\ub7ec\ub9ac\uc640 \ud328\ud134\uc774 \ub4f1\uc7a5\ud588\uace0, \uc800\ud76c\ub294 \uc774\ub97c \uba74\ubc00\ud788 \ub530\ub790\uc2b5\ub2c8\ub2e4. \uc131\uc219\ud55c \uac1c\ub150 \uc911 \ud558\ub098\ub294 Microsoft\uc640 .NET\uc5d0\uc11c \uc2dc\uc791\ub41c \ubc18\uc751\ud615 \ud655\uc7a5\uc73c\ub85c \uc54c\ub824\uc838 \uc788\uc2b5\ub2c8\ub2e4. \uc774 \uac1c\ub150\uc740 \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc774 \uc774\ubca4\ud2b8 \uc9c0\ud5a5\uc801\uc774\uc5b4\uc57c \ud558\uace0 \ube44\ub3d9\uae30 \ubc29\uc2dd\uc73c\ub85c \uc774\ubca4\ud2b8\uc5d0 \ubc18\uc751\ud574\uc57c \ud55c\ub2e4\ub294 \uc544\uc774\ub514\uc5b4\ub97c \uae30\ubc18\uc73c\ub85c \ud569\ub2c8\ub2e4. \ub370\uc774\ud130\ub85c \uc218\ud589\ud560 \uc218 \uc788\ub294 \uc791\uc5c5(\ub370\uc774\ud130 \uc218\uc815, \uacb0\ud569, \ud544\ud130\ub9c1 \ub4f1)\uc5d0 \ub300\ud55c \ub9e4\uc6b0 \ud48d\ubd80\ud55c \uc5f0\uc0b0\uc790 \uc9d1\ud569\uc744 \uc815\uc758\ud569\ub2c8\ub2e4. \ucd5c\uadfc \ub137\ud50c\ub9ad\uc2a4\ub294 \uc774\ub97c Java\ub85c \ud3ec\ud305\ud558\uace0 RxJava\ub77c\ub294 \ubcc4\uba85\uc744 \ubd99\uc600\uc2b5\ub2c8\ub2e4(\ud604\uc7ac \uc774 \ud504\ub85c\uc81d\ud2b8\ub294 \ub137\ud50c\ub9ad\uc2a4 \ub124\uc784\uc2a4\ud398\uc774\uc2a4 \uc544\ub798\uc5d0 \uc788\uc9c0\ub9cc \uc870\ub9cc\uac04 \"io.reactivex\"\ub85c \uc774\uc804\ub420 \uc608\uc815\uc785\ub2c8\ub2e4). \uc774 \ud504\ub85c\uc81d\ud2b8\ub294 \ub9e4\uc6b0 \uc548\uc815\uc801\uc774\uba70 Scala, Groovy, JRuby\uc640 \uac19\uc740 \ub2e4\ub978 JVM \uc5b8\uc5b4\uc5d0 \ub300\ud55c \uc5b4\ub311\ud130\ub3c4 \uc81c\uacf5\ud558\uc5ec \uc9c0\uc6d0\uc744 \ud655\ub300\ud558\ub824\ub294 \uacc4\ud68d\uacfc\ub3c4 \uc798 \ub9de\uc2b5\ub2c8\ub2e4.<\/p>\n

\ucee8\uc149<\/h2>\n

Rx\uc758 \uc8fc\uc694 \uc544\uc774\ub514\uc5b4\ub294 \uc635\uc800\ubc84\ube14\uacfc \uadf8 \uc635\uc800\ubc84\ub97c \uc911\uc2ec\uc73c\ub85c \uc804\uac1c\ub429\ub2c8\ub2e4. \uc774 \uac1c\ub150\uc744 \ucc98\uc74c \uc811\ud558\ub294 \ubd84\ub4e4\uc744 \uc704\ud574 \uc124\uba85\ud558\uc790\uba74, \uc635\uc800\ubc84\ube14\uc740 \uc774\ud130\ub7ec\ube14\uc758 \ube44\ub3d9\uae30 \ubc0f \ud478\uc2dc \uae30\ubc18 \uc0ac\ucd0c(\ub610\ub294 \ub354 \uc815\uc2dd\uc73c\ub85c \uc774\uc911\uc774\ub77c\uace0\ub3c4 \ud568)\uc774\ub77c\uace0 \uc0dd\uac01\ud558\uc2dc\uba74 \ub429\ub2c8\ub2e4. \uc880 \ub354 \uad6c\uccb4\uc801\uc73c\ub85c \uc774\ub4e4\uc758 \uad00\uacc4\ub97c \uc124\uba85\ud558\uba74 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4:<\/p>\n\n\n\n\n\n\n\n
\uc774\ubca4\ud2b8<\/th>\n\ubc18\ubcf5 \uac00\ub2a5(\ud480)<\/th>\n\uad00\ucc30 \uac00\ub2a5(\ud478\uc2dc)<\/th>\n<\/tr>\n<\/thead>\n
\ub370\uc774\ud130 \uac80\uc0c9<\/td>\nT next()<\/td>\nonNext(T)<\/td>\n<\/tr>\n
\uc624\ub958 \ubc1c\uacac<\/td>\n\uc608\uc678\ub97c \ub358\uc9d1\ub2c8\ub2e4.<\/td>\nonError(\uc608\uc678)<\/td>\n<\/tr>\n
\uc644\ub8cc<\/td>\n\ubc18\ud658<\/td>\nonCompleted()<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\uc635\uc800\ubc84\ube14\uc5d0 \ub370\uc774\ud130\uac00 \ud478\uc2dc\ub420 \ub54c\ub9c8\ub2e4, \uad6c\ub3c5\ub41c \ubaa8\ub4e0 \uc635\uc800\ube0c\ub294 onNext() \uba54\uc11c\ub4dc\uc5d0\uc11c \ub370\uc774\ud130\ub97c \ubc1b\uc2b5\ub2c8\ub2e4. \uc635\uc800\ubc84\ube14\uc774 \ucd5c\uc885\uc801\uc73c\ub85c \uc644\ub8cc\ub418\uba74(\ud56d\uc0c1 \uadf8\ub7f4 \ud544\uc694\ub294 \uc5c6\uc9c0\ub9cc) onCompleted \uba54\uc11c\ub4dc\uac00 \ud638\ucd9c\ub429\ub2c8\ub2e4. \uc774\uc81c \ud504\ub85c\uc138\uc2a4\uc758 \uc5b4\ub290 \uc9c0\uc810\uc5d0\uc11c\ub4e0 \uc624\ub958\uac00 \ubc1c\uc0dd\ud558\uba74 onError \uba54\uc11c\ub4dc\uac00 \ud638\ucd9c\ub418\uace0 Observable\ub3c4 \uc644\ub8cc\ub41c \uac83\uc73c\ub85c \uac04\uc8fc\ub429\ub2c8\ub2e4.<\/p>\n

\ubb38\ubc95\uc744 \uc88b\uc544\ud55c\ub2e4\uba74 \uacc4\uc57d\uc11c\ub294 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4:\u00a0<\/p>\n

\n
\uc628\ub125\uc2a4\ud2b8*(\uc628\uc644\ub8cc | \uc628\uc5d0\ub7ec)?<\/div>\n<\/div>\n

\ud2b9\ud788 1 \ub610\ub294 N\uac1c\uc758 \ub370\uc774\ud130\ub9cc \ubc18\ud658\ub418\ub294\uc9c0 \uc5ec\ubd80\ub294 \uad6c\ubd84\ub418\uc9c0 \uc54a\uc73c\uba70, \uc774\ub294 \uc77c\ubc18\uc801\uc73c\ub85c \ud638\ucd9c\ud558\ub294 \uba54\uc11c\ub4dc\uc640 \ubb38\uc11c\ud654 \ubc29\uc2dd\uc5d0\uc11c \uc720\ucd94\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc5b4\uca0c\ub4e0 \ud504\ub85c\uadf8\ub798\ubc0d \ud750\ub984\uc740 \ubc14\ub00c\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. \ub2e4\uc18c \ucd94\uc0c1\uc801\uc774\ubbc0\ub85c \uad6c\uccb4\uc801\uc778 \uc608\ub97c \uc0b4\ud3b4\ubcf4\uaca0\uc2b5\ub2c8\ub2e4. CouchbaseCluster \ud074\ub798\uc2a4\uc5d0\ub294 \ud544\uc694\ud55c \ubaa8\ub4e0 \ub9ac\uc18c\uc2a4\ub97c \ucd08\uae30\ud654\ud55c \ub2e4\uc74c \uc791\uc5c5\ud560 \uc218 \uc788\ub294 Bucket \uc778\uc2a4\ud134\uc2a4\ub97c \ubc18\ud658\ud558\ub294 openBucket\uc774\ub77c\ub294 \uba54\uc11c\ub4dc\uac00 \uc788\uc2b5\ub2c8\ub2e4. \uc18c\ucf13\uc744 \uc5f4\uace0, \uad6c\uc131\uc744 \uac00\uc838\uc624\ub294 \ub4f1\uc758 \uc791\uc5c5\uc5d0 \uc2dc\uac04\uc774 \uac78\ub9ac\ub294 \uac83\uc744 \uc0c1\uc0c1\ud560 \uc218 \uc788\uc73c\ubbc0\ub85c \uc774 \uba54\uc11c\ub4dc\ub294 \uc644\ubcbd\ud55c \ud6c4\ubcf4\uc785\ub2c8\ub2e4. \ucc28\ub2e8 API\ub294 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4:<\/p>\n

\n
\uc778\ud130\ud398\uc774\uc2a4 \ud074\ub7ec\uc2a4\ud130 {
\u00a0 \u00a0 \u00a0 \u00a0 \ubc84\ud0b7 \uc5f4\uae30 \ubc84\ud0b7(\ubb38\uc790\uc5f4 \uc774\ub984, \ubb38\uc790\uc5f4 \uc554\ud638);
}<\/div>\n<\/div>\n

\uc5b4\ub5bb\uac8c \ube44\ub3d9\uae30\ub85c \ub9cc\ub4e4 \uc218 \uc788\uc744\uae4c\uc694? \uc635\uc800\ubc84\ube14\ub85c \ub798\ud551\ud574\uc57c \ud569\ub2c8\ub2e4:<\/p>\n

\n
\uc778\ud130\ud398\uc774\uc2a4 \ud074\ub7ec\uc2a4\ud130 {
\u00a0 \u00a0 \u00a0 \u00a0 \uad00\ucc30 \uac00\ub2a5 openBucket(\ubb38\uc790\uc5f4 \uc774\ub984, \ubb38\uc790\uc5f4 \ube44\ubc00\ubc88\ud638);
}<\/div>\n<\/div>\n

\uc774\uc81c \uc0ac\uc6a9\ud560 \uc218 \uc788\ub294 \ubc84\ud0b7 \uc778\uc2a4\ud134\uc2a4\uc640 \ud568\uaed8 \ubc18\ud658\ub418\ub294 \uc635\uc800\ubc84\ube14\uc744 \ubc18\ud658\ud569\ub2c8\ub2e4. \uc635\uc800\ubc84\ub97c \ucd94\uac00\ud574 \ubcf4\uaca0\uc2b5\ub2c8\ub2e4:<\/p>\n

\n
\ud074\ub7ec\uc2a4\ud130.\uc624\ud508\ubc84\ud0b7<\/span>(<\/span>)<\/span>.\uad6c\ub3c5<\/span>(<\/span>new<\/span> \uc635\uc800\ubc84<<\/span>\ubc84\ud0b7><\/span>(<\/span>)<\/span> {<\/span>
\u00a0 \u00a0 \uc624\ubc84\ub77c\uc774\ub4dc
\u00a0 \u00a0 public<\/span> void<\/span> on\uc644\ub8cc(<\/span>)<\/span> {<\/span>
\u00a0 \u00a0 \u00a0 \u00a0 \uc2dc\uc2a4\ud15c<\/span><\/a>.out<\/span>.println<\/span>(<\/span>\"\uad00\ucc30 \uac00\ub2a5 \uc644\ub8cc!\"<\/span>)<\/span>;<\/span>
\u00a0 \u00a0 }<\/span><\/p>\n

\u00a0 \u00a0 \uc624\ubc84\ub77c\uc774\ub4dc
\u00a0 \u00a0 public<\/span> void<\/span> onError(<\/span>\ub358\uc9c0\uae30 \uac00\ub2a5<\/span><\/a> e)<\/span> {<\/span>
\u00a0 \u00a0 \u00a0 \u00a0 \uc2dc\uc2a4\ud15c<\/span><\/a>.err<\/span>.println<\/span>(<\/span>\"\ubb34\uc2a8 \uc77c\uc774 \uc0dd\uacbc\uc5b4\uc694\"<\/span>)<\/span>;<\/span>
\u00a0 \u00a0 \u00a0 \u00a0 e.\ud504\ub9b0\ud2b8\uc2a4\ud0dd\ud2b8\ub808\uc774\uc2a4<\/span>(<\/span>)<\/span>;<\/span>
\u00a0 \u00a0 }<\/span><\/p>\n

\u00a0 \u00a0 \uc624\ubc84\ub77c\uc774\ub4dc
\u00a0 \u00a0 public<\/span> void<\/span> onNext(<\/span>\ubc84\ud0b7 \ubc84\ud0b7)<\/span> {<\/span>
\u00a0 \u00a0 \u00a0 \u00a0 \uc2dc\uc2a4\ud15c<\/span><\/a>.out<\/span>.println<\/span>(<\/span>\"\ubc84\ud0b7\uc744 \ubc1b\uc558\uc2b5\ub2c8\ub2e4: \"<\/span> +<\/span> \ubc84\ud0b7)<\/span>;<\/span>
\u00a0 \u00a0 }<\/span>
}<\/span>)<\/span>;<\/span><\/div>\n<\/div>\n

\uc774 \uba54\uc11c\ub4dc\ub294 \ub2e4\ub978 \uc2a4\ub808\ub4dc\uc5d0\uc11c \ud638\ucd9c\ub418\ubbc0\ub85c \ucf54\ub4dc\ub97c \uc774\ub807\uac8c \ub0a8\uaca8\ub450\uace0 \uba54\uc778 \uc2a4\ub808\ub4dc\ub97c \uc885\ub8cc\ud558\uba74 \uc544\ubb34 \uac83\ub3c4 \ud45c\uc2dc\ub418\uc9c0 \uc54a\uc744 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\uc81c \ub098\uba38\uc9c0 \ucf54\ub4dc\ub97c \ubaa8\ub450 onNext \uba54\uc11c\ub4dc\uc5d0 \uc791\uc131\ud560 \uc218\ub3c4 \uc788\uc9c0\ub9cc, \uc774\uac83\uc774 \ucd5c\uc120\uc758 \ubc29\ubc95\uc740 \uc544\ub2d0 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ubc84\ud0b7\uc740\u00a0
\ub97c \ubbf8\ub9ac \uc5f4\uace0 \uc2f6\uc744 \uacbd\uc6b0, \uc774\ub97c \ucc28\ub2e8\ud55c \ub2e4\uc74c \ub098\uba38\uc9c0 \ucf54\ub4dc\ub97c \uc9c4\ud589\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ubaa8\ub4e0 \uc635\uc800\ubc84\ube14\uc740 \uc774\ud130\ub7ec\ube14\ucc98\ub7fc \ub290\uaef4\uc9c0\ub294 \ube14\ub85c\ud0b9 \uc635\uc800\ubc84\ube14\ub85c \ubcc0\ud658\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4:<\/p>\n

\n
\ucc28\ub2e8 \uad00\ucc30 \uac00\ub2a5 \ube14\ub85c\ud0b9\uc635\uc800\ubc84\ube14 = cluster.openBucket().toBlocking();<\/div>\n<\/div>\n

\ucc28\ub2e8 \ubc29\uc2dd\uc73c\ub85c \uc218\uc2e0\ub41c \uadf8\ud0c0\ub97c \ubc18\ubcf5\ud558\ub294 \ubc29\ubc95\uc740 \uc5ec\ub7ec \uac00\uc9c0\uac00 \uc788\uc9c0\ub9cc, \ub2e8 \ud558\ub098\uc758 \uac12\ub9cc \uae30\ub300\ud558\ub294 \uacbd\uc6b0(\uc800\ud76c\uc758 \uacbd\uc6b0\ucc98\ub7fc) \uc18d\uae30 \ubc29\ubc95\ub3c4 \uc788\uc2b5\ub2c8\ub2e4:<\/p>\n

\n
\ubc84\ud0b7 bucket = cluster.openBucket().toBlocking().single();<\/div>\n<\/div>\n

\uc5ec\uae30\uc11c \ub0b4\ubd80\uc801\uc73c\ub85c \uc77c\uc5b4\ub098\ub294 \uc77c\uc740 onNext\uc5d0\uc11c \ud638\ucd9c\ub41c \uac12\uc744 \uc800\uc7a5\ud588\ub2e4\uac00 onComplete\uac00 \ud638\ucd9c\ub418\uba74 \ubc18\ud658\ud558\ub294 \uac83\uc785\ub2c8\ub2e4. onError\uac00 \ud638\ucd9c\ub418\uba74 throwable\uc774 \uc9c1\uc811 \ub358\uc838\uc9c0\uace0 \uc774\ub97c \uc7a1\uc744 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n

API \ud1b5\ud569<\/h2>\n

\uc9c0\uae08\uae4c\uc9c0 \ubcf4\uc2e0 \uac83\uc740 \uc774\uc81c \uaca8\uc6b0 \ud45c\uba74\uc5d0 \ubd88\uacfc\ud569\ub2c8\ub2e4. \ubc84\ud0b7 \uc624\ud504\ub2dd\uc740 \ubbf8\ub798\uc5d0\ub3c4 \ub9e4\uc6b0 \uc798 \ucc98\ub9ac\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ud63c\uc790\uc11c. Observables\uac00 \ube5b\uc744 \ubc1c\ud558\ub294 \uacbd\uc6b0\ub294 \ub458 \uc774\uc0c1\uc758 \uacb0\uacfc\ub97c \ubc18\ud658\ud574\uc57c \ud560 \ub54c\uc785\ub2c8\ub2e4. \uc774 \uacbd\uc6b0, Future \ub294 \ub354 \uc774\uc0c1 \uc801\ud569\ud558\uc9c0 \uc54a\uc73c\uba70 \ud5a5\ud6c4<\uceec\ub809\uc158<T>> \ub610\ub294 \uc774\uc640 \uc720\uc0ac\ud55c \uac83\uc740 \ub3d9\uc77c\ud55c \ucee8\ud2b8\ub799\ud2b8\ub97c \uac16\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. \uc635\uc800\ubc84\ube14\uc740 \ub458 \uc774\uc0c1\uc758 T\uac00 \ubc18\ud658\ub420 \uc218 \uc788\uc74c\uc744 \uc758\ubbf8\ud558\ubbc0\ub85c, \ub54c\ub85c\ub294 \ud558\ub098, \ub54c\ub85c\ub294 \ub458 \uc774\uc0c1\uc758 T\uac00 \ubc18\ud658\ub418\ub354\ub77c\ub3c4 API\ub294 \ub3d9\uc77c\ud558\uac8c \ubcf4\uc77c \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n

\ub2e4\uc2dc \uad6c\uccb4\uc801\uc778 \uc608\ub97c \uc0b4\ud3b4\ubcf4\uaca0\uc2b5\ub2c8\ub2e4. SDK\ub294 \ud558\ub098\uc758 \ubb38\uc11c\ub97c \ubc18\ud658\ud558\ub294 get \uba54\uc11c\ub4dc\ub97c \ub178\ucd9c\ud569\ub2c8\ub2e4. \ub2e4\uc74c\uacfc \uac19\uc774 \ubcf4\uc785\ub2c8\ub2e4:<\/p>\n

\n
\uc778\ud130\ud398\uc774\uc2a4 \ubc84\ud0b7 {
\u00a0 \u00a0 \u00a0 \u00a0 \uad00\ucc30 \uac00\ub2a5 get(String id);
}<\/div>\n<\/div>\n

\uadf8\ub7ec\ub098 \uc7a0\uc7ac\uc801\uc73c\ub85c \ub458 \uc774\uc0c1\uc758 \uacb0\uacfc\ub97c \ubc18\ud658\ud560 \uc218 \uc788\ub294 \ucffc\ub9ac(\ubcf4\uae30, N1QL)\ub3c4 \uc9c0\uc6d0\ud569\ub2c8\ub2e4(\ub610\ub294 \uc804\ud600 \ubc18\ud658\ud558\uc9c0 \uc54a\uc744 \uc218\ub3c4 \uc788\uc74c). Observable \uacc4\uc57d \ub355\ubd84\uc5d0 \uc774\uc640 \uac19\uc740 API\ub97c \uad6c\ucd95\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4:<\/p>\n

\n
\uc778\ud130\ud398\uc774\uc2a4 \ubc84\ud0b7 {
\u00a0 \u00a0 \u00a0 \u00a0 \uad00\ucc30 \uac00\ub2a5 \ucffc\ub9ac(\ubdf0 \ucffc\ub9ac \ucffc\ub9ac);
}<\/div>\n<\/div>\n

\ubcf4\uc774\uc2dc\uc8e0? \ucee8\ud2b8\ub799\ud2b8\uc5d0\uc11c\ub294 \"\ucffc\ub9ac\ub97c \uc804\ub2ec\ud558\uba74 N\uac1c\uc758 ViewResults\ub97c \ubc18\ud658\ud55c\ub2e4\"\ub77c\uace0 \uc554\uc2dc\uc801\uc73c\ub85c \ub9d0\ud558\ub294\ub370, \uc774\ub294 Observable\uc774 \uc5b4\ub5bb\uac8c \ub3d9\uc791\ud574\uc57c \ud558\ub294\uc9c0 \uc54c\uace0 \uc788\uae30 \ub54c\ubb38\uc785\ub2c8\ub2e4. \uadf8\ub9ac\uace0 \ub354 \ud070 \uadf8\ub9bc\uc744 \uc704\ud574 \uc9c1\uad00\uc801\uc73c\ub85c \uc608\uc0c1\ub300\ub85c \uc791\ub3d9\ud558\ub294 \ub354 \ub9ce\uc740 \uba54\uc11c\ub4dc\uac00 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n

\n
\uc778\ud130\ud398\uc774\uc2a4<\/span> \ubc84\ud0b7 {<\/span>
\u00a0 \u00a0 <<\/span>D \ud655\uc7a5<\/span> \ubb38\uc11c><\/span> \uad00\ucc30 \uac00\ub2a5<<\/span>D><\/span> insert(<\/span>D \ubb38\uc11c)<\/span>;<\/span>
<<\/span>D extends<\/span> \ubb38\uc11c><\/span> \uad00\ucc30 \uac00\ub2a5<<\/span>D><\/span> \uc5c5\uc11c\ud2b8(<\/span>D \ubb38\uc11c)<\/span>;<\/span>
\u00a0 \u00a0 <<\/span>D \ud655\uc7a5<\/span> \ubb38\uc11c><\/span> \uad00\ucc30 \uac00\ub2a5<<\/span>D><\/span> \ub300\uccb4(<\/span>D \ubb38\uc11c)<\/span>;<\/span><\/p>\n

\u00a0 \u00a0 \uad00\ucc30 \uac00\ub2a5<<\/span>ViewResult><\/span> \ucffc\ub9ac(<\/span>\ubdf0 \ucffc\ub9ac \ucffc\ub9ac)<\/span>;<\/span>
\u00a0 \u00a0 \uad00\ucc30 \uac00\ub2a5<<\/span>QueryResult><\/span> \ucffc\ub9ac(<\/span>\ucffc\ub9ac \ucffc\ub9ac)<\/span>;<\/span>
\u00a0 \u00a0 \uad00\ucc30 \uac00\ub2a5<<\/span>QueryResult><\/span> \ucffc\ub9ac(<\/span>\ubb38\uc790\uc5f4<\/span><\/a> \ucffc\ub9ac)<\/span>;<\/span><\/p>\n

\u00a0 \u00a0 \uad00\ucc30 \uac00\ub2a5<<\/span>\ubd80\uc6b8><\/span> \ud50c\ub7ec\uc2dc(<\/span>)<\/span>;<\/span>
}<\/span><\/div>\n<\/div>\n

\ub0b4 \ub370\uc774\ud130 \ud750\ub984\uc744 \ube44\ub3d9\uae30\ud654\ud558\uc138\uc694!<\/h2>\n

\uc9c0\uae08\uae4c\uc9c0 Observables\uac00 \uc5b4\ub5a4 \uae30\ub2a5\uc744 \uc81c\uacf5\ud558\uba70, \uc77c\uad00\ub418\uace0 \ub2e8\uc21c\ud558\uba74\uc11c\ub3c4 \ube44\ub3d9\uae30\uc801\uc778 API\ub97c \uc81c\uacf5\ud558\ub294 \ub370 \uc5b4\ub5bb\uac8c \ub3c4\uc6c0\uc774 \ub418\ub294\uc9c0 \uc0b4\ud3b4\ubcf4\uc558\uc2b5\ub2c8\ub2e4. \ud558\uc9c0\ub9cc Observables\ub294 \uad6c\uc131 \uac00\ub2a5\uc131 \uce21\uba74\uc5d0\uc11c \uc815\ub9d0 \ube5b\uc744 \ubc1c\ud569\ub2c8\ub2e4. \uc774 \uae00\uc5d0\uc11c \ubaa8\ub450 \ub2e4\ub8f0 \uc218\ub294 \uc5c6\uc9c0\ub9cc Observables\ub85c \ub9ce\uc740 \uc77c\uc744 \ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. RxJava\uc5d0\ub294 \uc5ec\uae30\uc5d0\uc11c \ucc3e\uc744 \uc218 \uc788\ub294 \ub9e4\uc6b0 \ud6cc\ub96d\ud55c \ucc38\uc870 \ubb38\uc11c\uac00 \uc788\uc73c\ub2c8 \ud655\uc778\ud574 \ubcf4\uc138\uc694. \ube44\ub3d9\uae30 \ub370\uc774\ud130 \ud750\ub984\uc758 \uc791\ub3d9 \ubc29\uc2dd\uc744 \ubcf4\uc5ec\uc8fc\uae30 \uc704\ud574 \ub9c8\ube14 \ub2e4\uc774\uc5b4\uadf8\ub7a8\uc744 \uc0ac\uc6a9\ud558\uace0 \uc788\ub294\ub370, \uc774 \ub610\ud55c \ud5a5\ud6c4 \ubb38\uc11c\uc758 \uc77c\ubd80\ub85c \uc81c\uacf5\ud558\uace0\uc790 \ud558\ub294 \uac83\uc785\ub2c8\ub2e4.<\/p>\n

\uc2e4\uc81c \uc608\ub97c \ub4e4\uc5b4 \ubcf4\uaca0\uc2b5\ub2c8\ub2e4: \uc0ac\uc6a9\uc790 \uc138\ubd80 \uc815\ubcf4\uac00 \ud3ec\ud568\ub41c \uc644\uc804\ud55c JSON \uac1d\uccb4\uc778 \uce74\uc6b0\uce58\ubca0\uc774\uc2a4\uc5d0\uc11c \ubb38\uc11c\ub97c \ub85c\ub4dc\ud558\uace0 \uc2f6\uc9c0\ub9cc \ucf54\ub4dc\uc758 \ub354 \uc544\ub798\ucabd\uc5d0\uc11c \uc774\ub984\uc5d0 \ub300\ud55c \uc791\uc5c5\uc744 \uc218\ud589\ud558\ub824\uace0 \ud569\ub2c8\ub2e4. \ub9f5 \ud568\uc218\ub97c \uc0ac\uc6a9\ud558\uc5ec JsonDocument\uc5d0\uc11c \uc774\ub984 \ubb38\uc790\uc5f4\ub85c \ub9e4\ud551\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4:<\/p>\n

\n
\ubc84\ud0b7
\u00a0 \u00a0 .get<\/span>(<\/span>\"user::1\"<\/span>)<\/span>
\u00a0 \u00a0 .\uc9c0\ub3c4<\/span>(<\/span>new<\/span> Func1<<\/span>JsonDocument, \ubb38\uc790\uc5f4><\/span>(<\/span>)<\/span> {<\/span>
\u00a0 \u00a0 \u00a0 \u00a0 \uc624\ubc84\ub77c\uc774\ub4dc
\u00a0 \u00a0 \u00a0 \u00a0 public<\/span> \ubb38\uc790\uc5f4<\/span><\/a> \ud1b5\ud654(<\/span>\uc81c\uc774\uc2a8\ubb38\uc11c \uc81c\uc774\uc2a8\ubb38\uc11c)<\/span> {<\/span>
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \ubc18\ud658<\/span> jsonDocument.\ucf58\ud150\uce20<\/span>(<\/span>)<\/span>.getString<\/span>(<\/span>\"\uc774\ub984\"<\/span>)<\/span>;<\/span>
\u00a0 \u00a0 \u00a0 \u00a0 }<\/span>
\u00a0 \u00a0 }<\/span>)<\/span>
\u00a0 \u00a0 .\uad6c\ub3c5<\/span>(<\/span>new<\/span> Action1<<\/span>\ubb38\uc790\uc5f4><\/span>(<\/span>)<\/span> {<\/span>
\u00a0 \u00a0 \u00a0 \u00a0 \uc624\ubc84\ub77c\uc774\ub4dc
\u00a0 \u00a0 \u00a0 \u00a0 public<\/span> void<\/span> \ud1b5\ud654(<\/span>\ubb38\uc790\uc5f4<\/span><\/a> \uc774\ub984)<\/span> {<\/span>
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \uc2dc\uc2a4\ud15c<\/span><\/a>.out<\/span>.println<\/span>(<\/span>\uc774\ub984)<\/span>;<\/span>
\u00a0 \u00a0 \u00a0 \u00a0 }<\/span>
\u00a0 \u00a0 }<\/span>)<\/span>;<\/span><\/div>\n<\/div>\n

\uc5ec\uae30\uc5d0\ub294 \ub450 \uac00\uc9c0 \uc911\uc694\ud55c \uce21\uba74\uc774 \uc788\uc2b5\ub2c8\ub2e4: \uc5ec\uae30\uc11c \uccb4\uc778\ud654\ub41c \ubaa8\ub4e0 \uba54\uc11c\ub4dc\ub294 \ube44\ub3d9\uae30\uc801\uc73c\ub85c \uc2e4\ud589\ub418\ubbc0\ub85c \uc6d0\ub798 \uc2a4\ub808\ub4dc\ub97c \ucc28\ub2e8\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. \uce74\uc6b0\uce58\ubca0\uc774\uc2a4\uc5d0 \ub300\ud55c get \ud638\ucd9c\uc774 \ubc18\ud658\ub418\uba74 JSON \ubb38\uc11c\uc5d0\uc11c \uc774\ub984\uc744 \ub9e4\ud551\ud55c \ub2e4\uc74c \ub9c8\uc9c0\ub9c9\uc73c\ub85c \uc778\uc1c4\ud569\ub2c8\ub2e4. \uc644\uc804\ud55c Observer\ub97c \uc81c\uacf5\ud560 \ud544\uc694\ub294 \uc5c6\uc73c\uba70, onNext \uac12\uc5d0\ub9cc \uad00\uc2ec\uc774 \uc788\ub294 \uacbd\uc6b0 \ud574\ub2f9 \uac12\ub9cc \uad6c\ud604\ud558\uba74 \ub429\ub2c8\ub2e4(\uc5ec\uae30\uc5d0 \ud45c\uc2dc\ub41c \uac83\ucc98\ub7fc). \ub354 \ub9ce\uc740 \uc608\uc81c\ub294 \uc624\ubc84\ub85c\ub4dc\ub41c \uba54\uc11c\ub4dc\ub97c \ucc38\uc870\ud558\uc138\uc694.<\/p>\n

\ub610\ud55c \uc5ec\uae30\uc5d0\uc11c\ub294 \uc77c\ubd80\ub7ec Java 6\/7 \uc2a4\ud0c0\uc77c\uc758 \uc775\uba85 \ud074\ub798\uc2a4\ub97c \ubcf4\uc5ec\ub4dc\ub9ac\uace0 \uc788\ub2e4\ub294 \uc810\uc5d0 \uc720\uc758\ud558\uc138\uc694. Java 8\ub3c4 \uc9c0\uc6d0\ud558\uc9c0\ub9cc \uc774\uc5d0 \ub300\ud574\uc11c\ub294 \ub098\uc911\uc5d0 \uc790\uc138\ud788 \uc124\uba85\ud558\uaca0\uc2b5\ub2c8\ub2e4. \uc774\uc81c \uc774\ub984\uc774 \"a\"\ub85c \uc2dc\uc791\ud558\ub294 \uacbd\uc6b0\uc5d0\ub9cc \uc774\ub984\uc744 \ucd9c\ub825\ud558\ub824\uba74 \uc774 \uccb4\uc778\uc744 \uc5b4\ub5bb\uac8c \ud655\uc7a5\ud560 \uc218 \uc788\uc744\uae4c\uc694?<\/p>\n

\n
\ubc84\ud0b7
\u00a0 \u00a0 .get<\/span>(<\/span>\"user::1\"<\/span>)<\/span>
\u00a0 \u00a0 .\uc9c0\ub3c4<\/span>(<\/span>new<\/span> Func1<<\/span>JsonDocument, \ubb38\uc790\uc5f4><\/span>(<\/span>)<\/span> {<\/span>
\u00a0 \u00a0 \u00a0 \u00a0 \uc624\ubc84\ub77c\uc774\ub4dc
\u00a0 \u00a0 \u00a0 \u00a0 public<\/span> \ubb38\uc790\uc5f4<\/span><\/a> \ud1b5\ud654(<\/span>\uc81c\uc774\uc2a8\ubb38\uc11c \uc81c\uc774\uc2a8\ubb38\uc11c)<\/span> {<\/span>
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \ubc18\ud658<\/span> jsonDocument.\ucf58\ud150\uce20<\/span>(<\/span>)<\/span>.getString<\/span>(<\/span>\"\uc774\ub984\"<\/span>)<\/span>;<\/span>
\u00a0 \u00a0 \u00a0 \u00a0 }<\/span>
\u00a0 \u00a0 }<\/span>)<\/span>
\u00a0 \u00a0 .\ud544\ud130<\/span>(<\/span>new<\/span> Func1<<\/span>\ubb38\uc790\uc5f4<\/span><\/a>, \ubd80\uc6b8><\/span>(<\/span>)<\/span> {<\/span>
\u00a0 \u00a0 \u00a0 \u00a0 \uc624\ubc84\ub77c\uc774\ub4dc
\u00a0 \u00a0 \u00a0 \u00a0 public<\/span> \ubd80\uc6b8<\/span><\/a> \ud1b5\ud654(<\/span>\ubb38\uc790\uc5f4<\/span><\/a> s)<\/span> {<\/span>
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \ubc18\ud658<\/span> s.startsWith<\/span>(<\/span>\"a\"<\/span>)<\/span>;<\/span>
\u00a0 \u00a0 \u00a0 \u00a0 }<\/span>
\u00a0 \u00a0 }<\/span>)<\/span>
\u00a0 \u00a0 .\uad6c\ub3c5<\/span>(<\/span>new<\/span> Action1<<\/span>\ubb38\uc790\uc5f4><\/span>(<\/span>)<\/span> {<\/span>
\u00a0 \u00a0 \u00a0 \u00a0 \uc624\ubc84\ub77c\uc774\ub4dc
\u00a0 \u00a0 \u00a0 \u00a0 public<\/span> void<\/span> \ud1b5\ud654(<\/span>\ubb38\uc790\uc5f4<\/span><\/a> \uc774\ub984)<\/span> {<\/span>
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \uc2dc\uc2a4\ud15c<\/span><\/a>.out<\/span>.println<\/span>(<\/span>\uc774\ub984)<\/span>;<\/span>
\u00a0 \u00a0 \u00a0 \u00a0 }<\/span>
\u00a0 \u00a0 }<\/span>)<\/span>;<\/span><\/div>\n<\/div>\n

\ubb3c\ub860 \uac04\ub2e8\ud55c if \ubb38\uc73c\ub85c\ub3c4 \ucda9\ubd84\ud558\uc9c0\ub9cc, \ud544\ud130\ub9c1\ud558\ub294 \ucf54\ub4dc\uac00 \ud6e8\uc52c \ub354 \ubcf5\uc7a1\ud560 \uc218\ub3c4 \uc788\uace0 \ub2e4\ub978 \uac83\uc744 \ud638\ucd9c\ud560 \uc218\ub3c4 \uc788\ub2e4\uace0 \uc0c1\uc0c1\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub9c8\uc9c0\ub9c9\uc73c\ub85c \uad00\uce21\uac12 \ubcc0\ud658\uc5d0 \ub300\ud55c \ub9c8\uc9c0\ub9c9 \uc608\ub85c, \ubb38\uc11c\ub97c \ub85c\ub4dc\ud558\uace0 \ucf58\ud150\uce20\ub97c \uc218\uc815\ud55c \ub2e4\uc74c \ub2e4\uc2dc couchbase\uc5d0 \uc800\uc7a5\ud558\ub294 \ub9e4\uc6b0 \uc790\uc8fc \ubc1c\uc0dd\ud558\ub294 \uc791\uc5c5\uc744 \ud574\ubcf4\uaca0\uc2b5\ub2c8\ub2e4:<\/p>\n

\n
\ubc84\ud0b7
\u00a0 \u00a0 .get<\/span>(<\/span>\"user::1\"<\/span>)<\/span>
\u00a0 \u00a0 .\uc9c0\ub3c4<\/span>(<\/span>new<\/span> Func1<<\/span>JsonDocument, \uc81c\uc774\uc2a8\ub3c4\ud050\uba3c\ud2b8><\/span>(<\/span>)<\/span> {<\/span>
\u00a0 \u00a0 \u00a0 \u00a0 \uc624\ubc84\ub77c\uc774\ub4dc
\u00a0 \u00a0 \u00a0 \u00a0 public<\/span> JsonDocument \ud638\ucd9c(<\/span>JsonDocument \uc6d0\ubcf8)<\/span> {<\/span>
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \uc6d0\ubcf8.\ucf58\ud150\uce20<\/span>(<\/span>)<\/span>.put<\/span>(<\/span>\"\uc774\ub984\"<\/span>, \"SomethingElse\"<\/span>)<\/span>;<\/span>
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \ubc18\ud658<\/span> \uc6d0\ubcf8;<\/span>
\u00a0 \u00a0 \u00a0 \u00a0 }<\/span>
\u00a0 \u00a0 }<\/span>)<\/span>
\u00a0 \u00a0 .\ud50c\ub7ab\ub9f5<\/span>(<\/span>new<\/span> Func1<<\/span>JsonDocument, \uad00\ucc30 \uac00\ub2a5<<\/span>JsonDocument>><\/span>(<\/span>)<\/span> {<\/span>
\u00a0 \u00a0 \u00a0 \u00a0 \uc624\ubc84\ub77c\uc774\ub4dc
\u00a0 \u00a0 \u00a0 \u00a0 public<\/span> \uad00\ucc30 \uac00\ub2a5<<\/span>JsonDocument><\/span> \ud1b5\ud654(<\/span>JsonDocument \uc218\uc815\ub428)<\/span> {<\/span>
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \ubc18\ud658<\/span> \ubc84\ud0b7.\ub300\uccb4<\/span>(<\/span>\uc218\uc815\ub428)<\/span>;<\/span>
\u00a0 \u00a0 \u00a0 \u00a0 }<\/span>
\u00a0 \u00a0 }<\/span>)<\/span>.\uad6c\ub3c5<\/span>(<\/span>)<\/span>;<\/span><\/div>\n<\/div>\n

FlatMap\uc740 \ub9f5\uacfc \ub9e4\uc6b0 \uc720\uc0ac\ud558\uac8c \uc791\ub3d9\ud558\uc9c0\ub9cc, \ucc28\uc774\uc810\uc740 \uc635\uc800\ubc84\ube14 \uc790\uccb4\ub97c \ubc18\ud658\ud558\ubbc0\ub85c \ube44\ub3d9\uae30 \uc5f0\uc0b0\uc744 \ud1b5\ud55c \ub9e4\ud551\uc5d0 \ub9e4\uc6b0 \uc801\ud569\ud558\ub2e4\ub294 \uc810\uc785\ub2c8\ub2e4.<\/p>\n

\ub610 \ud55c \uac00\uc9c0 \uce21\uba74\uc740 Observables\ub97c \uc0ac\uc6a9\ud558\uba74 \uc815\uad50\ud55c \uc624\ub958 \ucc98\ub9ac\uac00 \uc190\ub05d\uc5d0\uc11c \ubc14\ub85c \uac00\ub2a5\ud558\ub2e4\ub294 \uc810\uc785\ub2c8\ub2e4. 2\ucd08\uc758 \ud0c0\uc784\uc544\uc6c3\uc744 \uc801\uc6a9\ud558\uace0 \ud638\ucd9c\uc774 \uc2e4\ud328\ud558\uba74 \ub2e4\ub978 \uac83\uc744 \ubc18\ud658\ud558\ub294 \uc608\uc81c\ub97c \uad6c\ud604\ud574 \ubcf4\uaca0\uc2b5\ub2c8\ub2e4:<\/p>\n

\n
\ubc84\ud0b7
\u00a0 \u00a0 .get<\/span>(<\/span>\"user::1\"<\/span>)<\/span>
\u00a0 \u00a0 .\uc2dc\uac04 \ucd08\uacfc<\/span>(<\/span>2<\/span>, TimeUnit.\ucd08<\/span>)<\/span>
\u00a0 \u00a0 .onErrorReturn<\/span>(<\/span>new<\/span> Func1<<\/span>\ub358\uc9c0\uae30 \uac00\ub2a5<\/span><\/a>, JsonDocument><\/span>(<\/span>)<\/span> {<\/span>
\u00a0 \u00a0 \u00a0 \u00a0 \uc624\ubc84\ub77c\uc774\ub4dc
\u00a0 \u00a0 \u00a0 \u00a0 public<\/span> JsonDocument \ud638\ucd9c(<\/span>\ub358\uc9c0\uae30 \uac00\ub2a5<\/span><\/a> \ub358\uc9c0\uae30 \uac00\ub2a5)<\/span> {<\/span>
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \ubc18\ud658<\/span> JsonDocument.create<\/span>(<\/span>\"\uc0ac\uc6a9\uc790::\uc775\uba85\"<\/span>, JsonObject.\ube48<\/span>(<\/span>)<\/span>.put<\/span>(<\/span>\"\uc774\ub984\"<\/span>, \"john-doe\"<\/span>)<\/span>)<\/span>;<\/span>
\u00a0 \u00a0 \u00a0 \u00a0 }<\/span>
\u00a0 \u00a0 }<\/span>)<\/span>;<\/span><\/div>\n<\/div>\n

\uc5ec\uae30\uc11c\ub294 2\ucd08 \ub0b4\uc5d0 get \ud638\ucd9c\uc774 \ubc18\ud658\ub418\uc9c0 \uc54a\uc73c\uba74 \ub354\ubbf8 \ubb38\uc11c\uac00 \ubc18\ud658\ub429\ub2c8\ub2e4(\uc774 \uc608\uc81c\uc5d0\uc11c\ub294 \ud569\ub9ac\uc801\uc778 \uae30\ubcf8\uac12\uc744 \uac00\uc815\ud558\uc5ec). \uc774\uac83\uc740 \uac04\ub2e8\ud55c \uc608\uc2dc\uc77c \ubfd0\uc774\uc9c0\ub9cc \uc7ac\uc2dc\ub3c4, \ub2e4\ub978 \uad00\uce21\uac12\uc73c\ub85c \ubd84\uae30\ud558\ub294 \ub4f1 \uc608\uc678\ub97c \uc0ac\uc6a9\ud558\uc5ec \ub9ce\uc740 \uc791\uc5c5\uc744 \uc218\ud589\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc62c\ubc14\ub978 \uc0ac\uc6a9 \ubc29\ubc95\uc740 \uacf5\uc2dd \ubb38\uc11c(\ubc0f Rx\uc758 \ubb38\uc11c)\ub97c \ucc38\uc870\ud558\uc138\uc694.<\/p>\n

\uc7a0\uae50, \ub354 \uc788\uc2b5\ub2c8\ub2e4<\/h2>\n

\uc11c\ub85c \ub2e4\ub978 \uad00\uce21\uac12\uc744 \uacb0\ud569(\ubcd1\ud569, \uc555\ucd95, \uc5f0\uacb0)\ud558\uace0, \uacb0\uacfc\ub97c \uc2dc\uac04 \uac04\uaca9\uc73c\ub85c \uc77c\uad04 \ucc98\ub9ac\ud558\uace0, \ubd80\uc791\uc6a9\uc744 \uc218\ud589\ud558\ub294 \ub4f1 \ud6e8\uc52c \ub354 \ub9ce\uc740 \uae30\ub2a5\uc744 \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uac1c\ub150\uc744 \uc774\ud574\ud558\ub294 \ucd08\uae30 (\uc791\uc740) \uc7a5\uc560\ubb3c\uc744 \ub118\uace0 \ub098\uba74 \ub9e4\uc6b0 \uc790\uc5f0\uc2a4\ub7ec\uc6cc\uc9c0\uace0 \ub2e4\uc2dc \ub3cc\uc544\uac00\uace0 \uc2f6\uc9c0 \uc54a\uc744 \uac83\uc785\ub2c8\ub2e4(\ud558\uc9c0\ub9cc \uc800\ud76c\uac00 \ud2c0\ub838\ub2e4\uba74 \uc5b8\uc81c\ub4e0\uc9c0 Observable\uc744 \ucc28\ub2e8\ud558\uac70\ub098 \ubbf8\ub798\ub85c \uc804\ud658\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4).<\/p>\n

RxJava\ub294 Java 8\ub3c4 \uc81c\ub300\ub85c \uc9c0\uc6d0\ud558\ubbc0\ub85c \uc774\ubbf8 \ud504\ub85c\uc81d\ud2b8\uc5d0 \uc0ac\uc6a9\ud560 \uc218 \uc788\ub294 \uc6b4\uc774 \uc88b\uc740 \uc0ac\ub78c\uc774\ub77c\uba74 \uc704\uc758 \uc608\uc81c\ub97c \ub2e4\uc74c\uacfc \uac19\uc774 \ub2e8\uc21c\ud654\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4:<\/p>\n

\n
\ubc84\ud0b7
\u00a0 \u00a0 .get(\"user::1\")
\u00a0 \u00a0 .map(jsonDocument -> jsonDocument.content().getString(\"firstname\"))
\u00a0 \u00a0 .filter(s -> s.startsWith(\"a\"))
\u00a0 \u00a0 .subscribe(System.out::println);<\/div>\n<\/div>\n

\uba4b\uc9c0\uc9c0 \uc54a\ub098\uc694? RxJava\ub294 \ub610\ud55c \uadf8 \uc704\uc5d0 \ub2e4\uc591\ud55c \uc5b8\uc5b4 \uc5b4\ub311\ud130\ub97c \uc81c\uacf5\ud558\ub294\ub370, \ud604\uc7ac Scala, Clojure, Groovy, JRuby \ubc0f Kotlin\uc744 \uc9c0\uc6d0\ud569\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uc5b4\ub311\ud130\ub294 \ub354 \ub9ce\uc740 \uc5b8\uc5b4\ubcc4 \ud1b5\ud569\uc744 \uc81c\uacf5\ud558\ub294 \ub370 \uc0ac\uc6a9\ub420 \uc218 \uc788\uc73c\uba70, \ud5a5\ud6c4 \uc218\uc694\uc5d0 \ub530\ub77c \uac01 \uc5b8\uc5b4\uc5d0 \ub300\ud55c \uce74\uc6b0\uce58\ubca0\uc774\uc2a4 \uc9c0\uc6d0\uc744 \uac15\ud654\ud558\ub294 \ub370\ub3c4 \uc77c\ubd80 \uc0ac\uc6a9\ud560 \uacc4\ud68d\uc785\ub2c8\ub2e4. Java SDK\ub97c \uc81c\uc678\ud55c \ucd5c\uc6b0\uc120 \uc21c\uc704\ub294 \ub2e8\uc5f0 Scala\uc774\ubbc0\ub85c \uc870\ub9cc\uac04 \ubc1c\ud45c\ub420 \ub0b4\uc6a9\uc744 \uae30\ub300\ud574 \uc8fc\uc138\uc694!<\/p>\n

\uc5ec\ub7ec\ubd84\ub3c4 \uc800\ud76c\ub9cc\ud07c\uc774\ub098 \uae30\ub300\uac00 \ud06c\uc2dc\uae38 \ubc14\ub77c\uba70, \uc77c\ubc18\uc801\uc778 \ucc44\ub110\uc744 \ud1b5\ud574 \uc5ec\ub7ec\ubd84\uc758 \ud53c\ub4dc\ubc31\uacfc \uc9c8\ubb38\uc744 \uae30\ub2e4\ub9ac\uaca0\uc2b5\ub2c8\ub2e4!<\/p>","protected":false},"excerpt":{"rendered":"

This blog post explains our reasoning and motivation behind choosing RxJava as one of the integral components in our new Java SDK. Motivation There are many ways to design an API and every one has its own set of benefits […]<\/p>\n","protected":false},"author":19,"featured_media":13873,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[1],"tags":[],"ppma_author":[8987],"class_list":["post-1833","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"yoast_head":"\nWhy Couchbase chose RxJava for the new Java SDK - The Couchbase Blog<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.couchbase.com\/blog\/ko\/why-couchbase-chose-rxjava-new-java-sdk\/\" \/>\n<meta property=\"og:locale\" content=\"ko_KR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Why Couchbase chose RxJava for the new Java SDK\" \/>\n<meta property=\"og:description\" content=\"This blog post explains our reasoning and motivation behind choosing RxJava as one of the integral components in our new Java SDK. 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He is the architect and maintainer of the Couchbase Java SDK, one of the first completely reactive database drivers on the JVM. He also authored and maintains the Couchbase Spark Connector. 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